org.eclipse.linuxtools.internal.perf.ui.StatView.java Source code

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Here is the source code for org.eclipse.linuxtools.internal.perf.ui.StatView.java

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/*******************************************************************************
 * Copyright (c) 2013 Red Hat Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Red Hat Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.linuxtools.internal.perf.ui;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.linuxtools.internal.perf.IPerfData;
import org.eclipse.linuxtools.internal.perf.PerfPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;

/**
 * A ViewPart to display the output from perf's stat command.
 */
public class StatView extends ViewPart {

    private StyledText text;

    public StatView() {
    }

    @Override
    public void createPartControl(Composite parent) {
        parent.setLayoutData(new GridLayout(1, true));

        text = new StyledText(parent, SWT.H_SCROLL | SWT.V_SCROLL);
        text.setEditable(false);

        IPerfData data = PerfPlugin.getDefault().getStatData();
        if (data != null) {
            setStyledText(data.getPerfData());
            setContentDescription(data.getTitle());
        }
    }

    @Override
    public void setFocus() {
        return;
    }

    private void setStyledText(String input) {
        text.setText(input);

        // the default TextConsole font (we want monospaced)
        text.setFont(JFaceResources.getFont(JFaceResources.TEXT_FONT));
    }

    /**
     * Update to most recent statistics data.
     */
    private void updateData() {
        IPerfData data = PerfPlugin.getDefault().getStatData();
        if (data != null) {
            setStyledText(data.getPerfData());
            setContentDescription(data.getTitle());
        }
    }

    /**
     * Refresh perf statistics view.
     */
    public static void refreshView() {
        Display.getDefault().syncExec(() -> {
            try {
                // A new view is created every time
                StatView view = (StatView) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                        .showView(PerfPlugin.STAT_VIEW_ID);
                view.updateData();
            } catch (PartInitException e) {
                IStatus status = new Status(IStatus.ERROR, PerfPlugin.PLUGIN_ID, e.getMessage(), e);
                PerfPlugin.getDefault().getLog().log(status);
            }
        });
    }

}